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1.
Objective: This study was designed to investigate the role of depression, anxiety, and fatigue in Chronic Fatigue Syndrome (CFS) sufferers' objective and subjective cognitive performance. Methods: Twenty-three CFS sufferers and 23 healthy control participants were compared on objective and subjective assessments of cognitive performance. Depression, anxiety, and fatigue were also evaluated. Results: CFS sufferers did not demonstrate any impairment in objective cognitive functioning compared to the control group, and objective performance was not related to their higher levels of depression or their level of fatigue. Depression scores only accounted for a small amount of the variance in CFS sufferers' lower subjective assessment of their cognitive performance compared to control participants. There were no differences between the groups on anxiety scores. Conclusion: The results are discussed in terms of the heterogeneity of the CFS population and the complex interaction of symptomatological factors that characterise CFS.  相似文献
2.
目的 探讨主观认知障碍(SCI)的危险因素及预防措施.方法 选取2016年3~9月在上海长征医院痴呆门诊就诊患者54例,进行简易智力状况检查量表和SCI调查问卷调查.然后采用单因素和多因素条件Logistic回归分析对数据进行处理以筛查影响因素.结果 经单因素和多因素条件Logistic回归分析,筛选出3个有意义的独立因素:年龄(OR=1.243,95%CI=1.072~1.442)、脑血管疾病史(OR=130.466,95%CI=1.688~3630.660)是SCI发生的独立危险因素;文化程度是独立保护因素(OR=0.016,95%CI=0.007~0.607).结论 年龄与脑血管疾病史是SCI发病的危险因素,在该病防治上需主要加强危险因素的防治.文化程度是发病保护因素,因此应该倡导和鼓励老年人多思考、勤用脑.  相似文献
3.

Introduction

Functional and cognitive features of subjective cognitive decline (SCD) were identified in a longitudinal database from the National Alzheimer's Coordinating Center.

Methods

Cognitively normal older adults with (SCD+) and without (SCD?) self-reported memory complaints (N = 3915) were compared on (1) baseline Functional Assessment Questionnaire ratings, (2) baseline scores and longitudinal rate of change estimates from nine neuropsychological tests, and (3) final clinical diagnoses.

Results

SCD+ had higher baseline ratings of functional impairment, reduced episodic memory practice effects and poorer performance on neuropsychological tests of psychomotor speed and language, and higher frequencies of mild cognitive impairment and dementia diagnoses at the end of follow-up compared with the SCD-group.

Discussion

Subtle clinical features of SCD identified in this large cohort are difficult to detect at the individual level. More sensitive tests are needed to identify those with SCD who are vulnerable to cognitive decline and dementia.  相似文献
4.

Introduction

Subjective cognitive decline (SCD) manifesting before clinical impairment could serve as a target population for early intervention trials in Alzheimer's disease (AD). A working group, the Subjective Cognitive Decline Initiative (SCD-I), published SCD research criteria in the context of preclinical AD. To successfully apply them, a number of issues regarding assessment and implementation of SCD needed to be addressed.

Methods

Members of the SCD-I met to identify and agree on topics relevant to SCD criteria operationalization in research settings. Initial ideas and recommendations were discussed with other SCD-I working group members and modified accordingly.

Results

Topics included SCD inclusion and exclusion criteria, together with the informant's role in defining SCD presence and the impact of demographic factors.

Discussion

Recommendations for the operationalization of SCD in differing research settings, with the aim of harmonization of SCD measurement across studies are proposed, to enhance comparability and generalizability across studies.  相似文献
5.

Introduction

Subjective cognitive decline (SCD) could indicate preclinical Alzheimer's disease, but the existing literature is confounded by heterogeneous approaches to studying SCD. We assessed the differential cognitive, affective, and neuroimaging correlates of two aspects of SCD: reporting high cognitive difficulties on a self-rated questionnaire versus consulting at a memory clinic.

Methods

We compared 28 patients from a memory clinic with isolated SCD, 35 community-recruited elders with similarly high levels of self-reported cognitive difficulties, and 35 community-recruited controls with low self-reported cognitive difficulties.

Results

Increased anxiety and amyloid β deposition were observed in both groups with high self-reported difficulties, whereas subclinical depression and (hippocampal) atrophy were specifically associated with medical help seeking. Cognitive tests showed no group differences.

Discussion

These results further validate the concept of SCD in both community- and clinic-based groups. Yet, recruitment methods influence associated biomarkers and affective symptomatology, highlighting the heterogeneous nature of SCD depending on study characteristics.  相似文献
6.

Introduction

Subjective cognitive decline (SCD) is a risk factor for mild cognitive impairment (MCI) and Alzheimer's disease (AD). Although sleep has been shown to be altered in MCI and AD, little is known about sleep in SCD.

Methods

Seventy cognitively normal community-dwelling participants were classified as SCD (32) or controls (38) using the Subjective Cognitive Decline Questionnaire. Sleep was assessed using actigraphy and diaries. FreeSurfer was used for performing medial temporal lobes (MTLs) and brain cortical parcellation of 3T magnetic resonance images. Multiple regression models were used to assess the presence of sleep, MTL, or regional cortical differences between groups.

Results

Objective sleep was disrupted in SCD participants, which showed increased nighttime wakefulness and reduced sleep efficiency. No group differences emerged in subjective sleep or magnetic resonance imaging outcomes.

Discussion

Objective sleep resulted disrupted in community-dwelling SCD, without any subjective sleep or cortical change. Sleep assessment/intervention in SCD might help prevent/delay AD onset.  相似文献
7.
Introduction: The Boston Naming Test (BNT), a 60-item test of confrontation naming, may be administered either from Item 1 or Item 30, depending on assumptions of performance. If the BNT is administered from Item 30, 29 automatic credits are given for preceding items, allowing identical norms for either administration. We aimed to compare effects of automatic credits. Method: We compared effects of automatic credits in the Gothenburg Mild Cognitive Impairment Study, first between normal controls (n = 23) and patients (n = 259), and then between the same patients grouped by stage of impairment: subjective cognitive impairment (SCI, n = 75), mild cognitive impairment (MCI, n = 117), or mild dementia (n = 67). Results: Automatic credits added to all groups. Both administrations from Item 1 and those from Item 30 discriminated between controls (n = 23) and all patients (n = 259), as well as between the above stages of impairment. However, neither administration discriminated between normal controls and SCI patients. When earned scores were compared, with scores counted from Item 30 plus 29 automatic credits, mild dementia patients on average received a 3.4-credit boost. This equals 82% of the standard deviation of Tallberg’s Swedish norms [Brain and Language, 94(1), 19–31 (2005)] or 117% of our normal controls’ standard deviation. Conclusions: In our homogenous material, administration of BNT from Item 30 distinguished between stages of deterioration as well as administration from Item 1. In line with recent literature, we also find BNT results skewed. Thus, for clinical accuracy, we recommend use of cumulative percentages, careful consideration of education and demographic factors, and, most importantly, never to mix forms of administrations with and without automatic credits. While BNT automatic credits diminish accuracy on all levels, they inflate scores significantly for nonaphasic mild dementia patients.  相似文献
8.
9.
Background and purpose: Subjective language complaints (SLC) are common during ageing but have not been investigated in detail. We aim to determine their association with demographic and clinical variables and objective cognitive performance. Methods: A sample of 479 individuals aged 50 years or above (average 66 ± 9.1 years), followed in primary care, with no history of brain disorder were asked two questions concerning SLC, fulfilled a depression scale and undertook a battery of cognitive tests. Response to questions regarding proper name retrieval (PNR) and word finding difficulties (WFD) was studied and their contribution to each measure of the battery calculated by repeated linear regression analysis, adjusting for age, sex, education, living alone and depressive symptoms. Results: Word finding difficulties (47.6%) were more frequently reported than problematic PNR (10.9%). Both were more common in women, in subjects with depressive symptoms and in those living alone, but were unrelated with age or education. Both symptoms contributed significantly to the variance in tests of semantic fluency and episodic memory. PNR was also associated with immediate phonological memory. Conclusions: Subjective language complaints are especially common amongst individuals living alone and/or with depressive symptoms. They are associated with a worse cognitive performance in some memory and language‐executive tests. Further studies are needed to understand their predictive value for cognitive decline.  相似文献
10.

Introduction

We examined the relation between self-reported hearing loss, hearing aid use, and risk of subjective cognitive function (SCF) decline.

Methods

We conducted an 8-year (2008–2016) longitudinal study of 10,107 men aged ≥62 years who reported their hearing status in 2006 and had no subjective cognitive concerns in 2008. Change in SCF scores was assessed by a 6-item questionnaire, and subjective decline was defined as new report of at least one SCF concern during follow-up.

Results

Hearing loss was associated with higher risk of SCF decline. Compared with no hearing loss, the multivariable-adjusted relative risk (95% CI) of incident SCF decline was 1.30 (1.18, 1.42), 1.42 (1.26, 1.61), and 1.54 (1.22, 1.96) among men with mild, moderate, and severe hearing loss (no hearing aids), respectively (P-trend < .001). Among men with severe hearing loss who used hearing aids, the multivariable-adjusted relative risk (95% CI) was 1.37 (1.18, 1.60).

Discussion

Hearing loss was associated with substantially higher risk of subsequent subjective cognitive decline in men.  相似文献
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